CN216213534U

CN216213534U - Novel LED lamp bead

Info

Publication number: CN216213534U
Application number: CN202122637363.4U
Authority: CN
Inventors: 应园; 刘三
Original assignee: Ningbo Shining Optoelectronics Co ltd
Current assignee: Ningbo Shining Optoelectronics Co ltd
Priority date: 2021-10-29
Filing date: 2021-10-29
Publication date: 2022-04-05
Anticipated expiration: 2031-10-29

Abstract

The utility model relates to a novel LED lamp bead, which comprises a substrate, an LED chip arranged on the substrate, and a lamp shade which covers the LED chip and is connected with the substrate at the bottom, wherein positive and negative conductive pins formed by solder paste are arranged on the substrate, and the positive and negative electrodes of the LED chip are respectively and correspondingly connected with the positive and negative conductive pins to realize the external electric connection; the novel LED lamp bead further comprises a fluorescent glass sheet, and the fluorescent glass sheet covers the top end of the lamp shade so that the space in the lamp shade forms a vacuum sealing state. The LED lamp bead has good irradiation effect and long service life, and is favorable for saving the production cost.

Description

Novel LED lamp bead

Technical Field

The utility model relates to the technical field of LED lamps, in particular to a novel LED lamp bead.

Background

LED lamp pearl on the existing market mostly includes structures such as base plate, LED chip, lamp shade, and the lamp shade setting is on the base plate, and the LED chip is arranged in the lamp shade and is fixed with the base plate, and the LED chip is connected with the outside electricity through the wire that passes the lamp shade.

Adopt the wire to connect electrically, can cause on the one hand that production assembly operation is comparatively inconvenient, manufacturing cost is high, and on the other hand is also more important, and LED chip work can produce a large amount of heats, and this high temperature heat can cause the wire oxidation too fast.

In order to solve the problem, the current lamp shade is mostly filled with a mixture of silica gel and fluorescent powder to cover the wires, so that the side effect of heat on the wires is reduced.

However, another problem is caused by the design, the heat generated by the LED can cause the aging and cracking of the silica gel, which affects the irradiation effect and the service life of the LED lamp bead, and the phenomenon of self-heating caused by the excitation of the fluorescent powder can aggravate the problem.

SUMMERY OF THE UTILITY MODEL

In view of the above problems, an object of the present invention is to provide a novel LED lamp bead with good illumination effect, long service life and favorable for saving production cost.

In order to achieve the purpose, the technical scheme of the utility model is as follows: the utility model provides a novel LED lamp pearl, includes the base plate, sets up LED chip on the base plate, establishes its interior and the lamp shade that the bottom links to each other with the base plate with LED chip cover, its characterized in that:

positive and negative conductive pins formed by solder paste are arranged on the substrate, and the positive and negative electrodes of the LED chip are respectively and correspondingly connected with the positive and negative conductive pins to realize the external electric connection;

the novel LED lamp bead further comprises a fluorescent glass sheet, and the fluorescent glass sheet covers the top end of the lamp shade so that the space in the lamp shade forms a vacuum sealing state.

Furthermore, at least one surface of the fluorescent glass sheet is a sawtooth-shaped surface.

Furthermore, the saw teeth are saw teeth with an angle of 90 degrees or semicircular saw teeth.

Further, the lampshade is made of ceramic materials.

Furthermore, the positive and negative conductive pins extend to the edge of the substrate and extend towards the other surface of the substrate.

Further, the positive and negative conductive pins are formed by coating solder paste on the substrate.

Furthermore, the fluorescent glass sheet is connected with the top end of the lampshade, and the bottom of the lampshade is connected with the substrate and the positive and negative conductive pins through sealing glue.

Compared with the prior art, the utility model has the advantages that:

the LED chip is electrically connected with the outside through the positive and negative conductive pins formed by the solder paste, so that the production and assembly are simplified, and the production cost is saved; through setting up the fluorescence glass piece, can effectively solve among the prior art problem that silica gel influences LED lamp pearl and shines the effect after using for a long time ageing fracture, simultaneously through set up sawtooth shape on the fluorescence glass piece, can make LED lamp pearl shine more evenly through fluorescence glass piece and lamp shade with the lamp shade space enclose synthetic vacuum seal state, can reduce the oxidation of LED chip pad to improve LED lamp pearl's life.

Drawings

FIG. 1 is a schematic diagram of an LED lamp bead structure in the present application.

Fig. 2 is another schematic diagram of the structure of the LED lamp bead in the present application.

Fig. 3 is another schematic diagram of the structure of the LED lamp bead in the present application.

Fig. 4 is another schematic diagram of the structure of the LED lamp bead in the present application.

Fig. 5 is an explosion structure schematic diagram of an LED lamp bead in the present application.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.

Fig. 1 to 5 are schematic structural views of a preferred embodiment of the present invention, and as shown in the figure, the novel LED lamp bead includes a substrate 1, an LED chip 2 disposed on the substrate 1, and a lampshade 3 covering the LED chip 2 therein and having a bottom connected to the substrate 1, the substrate 1 is provided with positive and negative

conductive pins

41 and 42 formed by solder paste, and the positive and negative electrodes of the LED chip 2 are respectively and correspondingly connected to the positive and negative

conductive pins

41 and 42 to realize electrical connection with the outside; this novel LED lamp pearl still includes fluorescence glass piece 5, and the top of fluorescence glass piece 5 lid closed lamp shade 3 so that the space in the lamp shade 3 forms vacuum seal state.

Through setting up fluorescence glass piece 5, when LED lamp pearl is giving out light, the self-heating that the phosphor powder on the fluorescence glass piece 5 produced can not direct conduction give positive and negative

conductive pin

41, 42, sets up the space in the lamp shade 3 into vacuum state simultaneously, can reduce 2 pad oxidation rate of LED chip, improves its life.

Moreover, the fluorescent glass sheet 5 is adopted to avoid the problem that the irradiation effect of the LED lamp beads is influenced due to aging and cracking of a mixture of silica gel and fluorescent powder in the prior art. In addition, positive and negative

conductive pins

41, 42 are formed by the solder paste arranged on the substrate 1, and compared with the mode of conducting electricity by adopting a conducting wire in the prior art, the assembly of each part of the LED lamp bead is more convenient, and the production cost is saved.

In order to improve the irradiation effect of the LED lamp bead, at least one surface of the fluorescent glass sheet 5 is a sawtooth-shaped surface. Through the reflection and refraction effects on the surfaces of the sawteeth, the emergent light of the LED lamp beads can be more uniform. Specifically, the serrations may be provided as 90 degree serrations, semicircular serrations, or the like.

In the present embodiment, the lamp housing 3 is made of a ceramic material. The ceramic material has good heat dissipation and temperature resistance, thus being beneficial to the heat dissipation in the lampshade 3. Of course, the lamp housing 3 may be made of other materials with good heat dissipation effect.

In the present embodiment, the positive and negative

conductive pins

41 and 42 extend to the edge of the substrate 1 and are formed to extend toward the other surface of the substrate 1. More specifically, the positive and negative

conductive pins

41 and 42 are formed by coating solder paste on the substrate 1. By adopting the design, on one hand, the production of the positive and negative

conductive pins

41 and 42 is very convenient, and on the other hand, the assembly between the LED lamp beads and the PCB and the sealing between the lampshade 3 and the substrate 1 and between the positive and negative

conductive pins

41 and 42 can be facilitated.

In this embodiment, the space between the fluorescent glass sheet 5 and the top of the lamp housing 3, the bottom of the lamp housing 3 and the substrate 1 and the positive and negative

conductive pins

41 and 42 are all connected by the sealant 6 to ensure that the space inside the lamp housing 3 is in a vacuum sealing state. It should be noted that the LED chip 2 in this application is a reflective chip, such as a vcsel laser chip.

While embodiments of the utility model have been shown and described, it will be understood by those skilled in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the utility model, the scope of which is defined by the claims and their equivalents.

Claims

1. The utility model provides a novel LED lamp pearl, includes base plate (1), sets up LED chip (2) on base plate (1), cover LED chip (2) and establish its just lamp shade (3) that the bottom links to each other with base plate (1) in it, its characterized in that:

positive and negative conductive pins (41, 42) formed by solder paste are arranged on the substrate (1), and the positive and negative electrodes of the LED chip (2) are respectively and correspondingly connected with the positive and negative conductive pins (41, 42) so as to realize the external electric connection;

novel LED lamp pearl still includes fluorescence glass piece (5), fluorescence glass piece (5) lid closes the top in lamp shade (3) so that the space in lamp shade (3) forms vacuum seal state.

2. The LED lamp bead of claim 1, wherein:

at least one surface of the fluorescent glass sheet (5) is a sawtooth surface.

3. The LED lamp bead of claim 2, wherein:

the saw teeth are saw teeth with an angle of 90 degrees or semicircular saw teeth.

4. The LED lamp bead of claim 1, wherein:

the lampshade (3) is made of ceramic materials.

5. The LED lamp bead of claim 1, wherein:

the positive and negative conductive pins (41, 42) extend to the edge of the substrate (1) and extend towards the other surface of the substrate (1).

6. The LED lamp bead of claim 5, wherein:

the positive and negative conductive pins (41, 42) are formed by coating solder paste on the substrate (1).

7. The LED lamp bead of claim 1, wherein:

the fluorescent glass sheet (5) is connected with the top end of the lampshade (3), and the bottom of the lampshade (3) is connected with the substrate (1) and the positive and negative conductive pins (41 and 42) through the sealant (6).